Cavan Roads Policing Unit performed a series of operations with the Road Safety Authority (RSA) over the last few days.
Unsuitable and excessively worn tyres were detected on a number of vehicles.
Gardai say that tyres on the road in this condition pose extreme risk.
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They added that has been particularly true in recent days due to wet conditions on roads.
Gardai are advising motorists to check their tyres and ensure they are legally compliant.